8Hietanen M,Kovala T,Hamalainen A H. Human brain activity during exposure to radiofrequency field emitted by cellular phones[J]. Scand J Work Environ Health, 2000,26(2) : 87-92.
9Lebedeva N N,Sulimov A V,Sulimova O P,et al. Cellular phone electromagnetic field effects on bioelectric activity of human brain[J]. Crit Rev Biomed Eng, 2000,28( 1-2 ) : 323-337.